Sensor substrate and sensing display panel having the same

ABSTRACT

A sensor substrate includes a base substrate, a black matrix pattern, a sensing electrode pattern, a driving electrode pattern, and at least one bridge line. The black matrix pattern is disposed on the base substrate and divides the base substrate into a light transmission area and a light blocking area. The sensing electrode pattern includes a plurality of first unit patterns arranged in association with a first direction. The driving electrode pattern includes a plurality of second unit patterns arranged in association with a second direction and disposed adjacent to the plurality of first unit patterns. The at least one bridge line is connected between at least two of the plurality of first unit patterns or between at least two of the plurality of second unit patterns.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No.14/923,960, filed Oct. 27, 2015, now issued as U.S. Pat. No. 9,933,871,which is a divisional of U.S. patent application Ser. No. 13/705,703,filed Dec. 5, 2012, now issued as U.S. Pat. No. 9,202,949, and claimspriority to and the benefit of Korean Patent Application No.10-2012-0066942, filed Jun. 21, 2012, each of which is incorporated byreference for all purposes as if set forth herein.

BACKGROUND Field

Exemplary embodiments of the present disclosure relate to sensorsubstrates and sensing display panels incorporating the sensorsubstrate, and more particularly to sensor substrates and sensingdisplay panels incorporating sensor substrates to prevent damageassociated with static electricity.

Discussion

A liquid crystal display (LCD) apparatus typically relatively thin andlight weight, as well as consumes low levels of power. As such, LCDs aregenerally used in association with monitors, laptop computers, cellularphones, personal digital assistants, and the like. Conventional LCDsinclude an LCD panel configured to display images via lighttransmittance through liquid crystal, the light radiating from abacklight assembly disposed “behind” or “under” the LCD panel and,thereby, providing the light to the LCD panel.

An LCD panel typically includes an array substrate having one or moresignal lines, thin film transistors TFT, and pixel electrodes, as wellas includes an opposite substrate facing the array substrate and havinga common electrode. A liquid crystal layer is generally speakingdisposed between the array substrate and the opposite substrate. Theliquid crystal layer may be driven using a vertical electric field whichmay be formed by a potential difference between the common electrode andthe one or more pixel electrodes. In terms of performance, liquidcrystal layers driven via vertical electric fields typically yield morethan sufficient levels of light transmittance and exhibit high apertureratios. These liquid crystal layers, however, can be deficient withrespect to viewing angles.

Conventional approaches to improving the viewing angle typically entailsdisposing the common electrode and the one or more pixel electrodes onan array substrate so that the liquid crystal layer may be driven via ahorizontal electric field, which is formed via a potential differencebetween the common electrode and the one or more pixel electrodes. It isnoted, however, that LCD panels utilizing horizontal electric fieldsincluding an opposing substrate opposite to the array substrate and notincluding a common electrode can be prone to negative effects associatedwith static electricity, such as static electricity build-up anddischarge.

The above information disclosed in this Background section is only forenhancement of understanding of the background of the invention andtherefore it may contain information that does not form any part of theprior art nor what the prior art may suggest to a person of ordinaryskill in the art.

BRIEF SUMMARY OF THE INVENTION

Exemplary embodiments provide a sensor substrate configured to preventnegative effects associated with static electricity, such as staticelectricity build-up and discharge.

Exemplary embodiments provide a sensing display panel incorporating asensor substrate configured to prevent negative effects associated withstatic electricity, such as static electricity build-up and discharge.

Additional aspects will be set forth in the detailed description whichfollows and, in part, will be apparent from the disclosure, or may belearned by practice of the invention.

According to exemplary embodiments, a sensor substrate includes a basesubstrate, a black matrix pattern, a sensing electrode pattern, adriving electrode pattern, and at least one bridge line. The blackmatrix pattern is disposed on the base substrate and divides the basesubstrate into a light transmission area and a light blocking area. Thesensing electrode pattern includes a plurality of first unit patternsarranged in association with a first direction. The driving electrodepattern includes a plurality of second unit patterns arranged inassociation with a second direction and are disposed adjacent to theplurality of first unit patterns. The at least one bridge line isconnected between at least two of the plurality of first unit patternsor between at least two of the plurality of second unit patterns.

According to exemplary embodiments a sensing display panel includes: adisplay substrate and a sensor substrate. The s display substrateincludes: a plurality of pixel electrodes, and a common electrodeoverlapping the pixel electrodes. The sensor substrate includes: asensing electrode pattern, a driving electrode pattern, and at least onebridge line. The sensing electrode pattern includes a plurality of firstunit patterns arranged in association with a first direction. Thedriving electrode pattern includes a plurality of second unit patternsarranged in association with a second direction and are disposedadjacent to the plurality of first unit patterns. The at least onebridge line is connected between at least two of the plurality of firstunit patterns or between at least two of the plurality of second unitpatterns.

According to exemplary embodiments, a sensing display panel includes: adisplay substrate and a sensor substrate. The display substrateincludes: a plurality of pixel electrodes arranged in a matrixformation, a driving electrode pattern overlapping the plurality ofpixel electrodes, and a common line connected to the driving electrodepattern. The sensor substrate includes a black matrix pattern includingan area in which the plurality of pixel electrodes is disposed, the areacorresponding to a light transmission area, and a sensing electrodepattern including a plurality of lines connected to one another andoverlapping the black matrix pattern.

According to exemplary embodiments, a sensing display panel includes adisplay substrate and a sensor substrate. The display substrate includesa plurality of pixels, a driving electrode pattern, a common electrodepattern, and a common line. The plurality of pixel electrodes isdisposed in a matrix formation comprising a row direction and a columndirection. The driving electrode pattern includes a unit patternarranged in the row direction and overlaps the plurality of pixelelectrodes. The common electrode pattern is spaced apart from the unitpattern and overlaps the plurality of pixel electrodes, the commonelectrode pattern being arranged in the column direction. The commonline extends in the row direction. The sensor substrate comprises ablack matrix pattern and a sensing electrode pattern. The black matrixpattern comprises an area in which the plurality of pixel electrodes isdisposed, the area corresponding to a light transmission area. Thesensing electrode pattern comprises a plurality of lines connected toone another and overlapping the black matrix pattern.

According to exemplary embodiments, the sensor substrate includes atleast one of the driving electrode pattern and the sensing electrodepattern, each of which may be formed including a metal material so thata display apparatus incorporating the sensor substrate may be protectedfrom the deleterious effects associated with static electricity.Further, a bias signal, such as a direct current voltage exhibiting apredetermined voltage level or ground voltage GND is caused to beapplied to at least one of the driving electrode pattern and the sensingelectrode pattern so that a static electricity blocking effect may beimproved.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and explanatory and areintended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate exemplary embodiments of theinvention, and together with the description serve to explain theprinciples of the invention.

FIG. 1 is a block diagram of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments.

FIG. 2 is an enlarged plan view of portion “A” of the sensing displaypanel of FIG. 1, according to exemplary embodiments.

FIG. 3 is a cross-sectional view of the sensing display panel of FIG. 2taken along sectional line I-I′, according to exemplary embodiments.

FIGS. 4A-4E are cross-sectional views of a sensor substrate taken alongsectional line II-II′ at various stages of one or more manufacturingprocesses, according to exemplary embodiments.

FIGS. 5A-5E are cross-sectional views of a sensor substrate at variousstages of a manufacturing process, according to exemplary embodiments.

FIGS. 6A-6E are cross-sectional views a sensor substrate at variousstages of a manufacturing process, according to exemplary embodiments.

FIG. 7 is a waveform diagram associated with driving the sensing displaypanel of FIG. 1, according to exemplary embodiments.

FIG. 8 is a waveform diagram associated with driving a sensing displaypanel, according to exemplary embodiments.

FIG. 9 is a plan view of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments.

FIG. 10 is a plan view of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments.

FIG. 11A is a plan view of a sensing display panel, according toexemplary embodiments.

FIG. 11B is a schematic diagram of the sensing display panel of FIG.11A, according to exemplary embodiments.

FIG. 12 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

FIG. 13 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

FIG. 14 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

FIG. 15 is a block diagram of a display apparatus incorporating asensing display panel, according to exemplary embodiments.

FIG. 16 is a plan view of the sensing display panel of FIG. 15,according to exemplary embodiments.

FIG. 17 is a cross-sectional view of the sensing display panel of FIG.16 taken along sectional line III-III′, according to exemplaryembodiments.

FIG. 18 is a waveform diagram associated with driving the sensingdisplay panel of FIG. 15, according to exemplary embodiments.

FIG. 19 is a block diagram of a display apparatus incorporating asensing display panel, according to exemplary embodiments.

FIG. 20 is a plan view of the sensing display panel of FIG. 19,according to exemplary embodiments.

FIG. 21 is a waveform diagram associated with driving the sensingdisplay panel of FIG. 19, according to exemplary embodiments.

FIG. 22 is a plan view of a sensing display panel, according toexemplary embodiments.

FIG. 23 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

FIG. 24 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

FIG. 25 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments.

DETAILED DESCRIPTION

In the following description, for the purposes of explanation, numerousspecific details are set forth in order to provide a thoroughunderstanding of various exemplary embodiments. It is apparent, however,that various exemplary embodiments may be practiced without thesespecific details or with one or more equivalent arrangements. In otherinstances, well-known structures and devices are shown in block diagramform in order to avoid unnecessarily obscuring various exemplaryembodiments.

In the accompanying figures, the size and relative sizes of layersand/or regions may be exaggerated for clarity and descriptive purposes.Also, like reference numerals denote like elements.

When an element or layer is referred to as being “on,” “connected to,”or “coupled to” another element or layer, it may be directly on,directly connected to, or directly coupled to the other element orlayer, or intervening elements or layers may be present. When, however,an element is referred to as being “directly on,” “directly connectedto,” or “directly coupled to” another element or layer, there are nointervening elements or layers present. For the purposes of thisdisclosure, “at least one of X, Y, and Z” may be construed as X only, Yonly, Z only, or any combination of two or more of X, Y, and Z, such as,for instance, XYZ, XYY, YZ, and ZZ. Like numbers refer to like elementsthroughout. As used herein, the term “and/or” includes any and allcombinations of one or more of the associated listed items.

Although the terms first, second, third, etc., may be used herein todescribe various elements, components, regions, layers, and/or sections,these elements, components, regions, layers, and/or sections should notbe limited by these terms. These terms are only used to distinguish oneelement, component, region, layer, or section from another element,component, region, layer, or section. Thus, a first element, component,region, layer, or section that is discussed below may be termed a secondelement, component, region, layer, or section without departing from theteachings of the present invention.

Spatially relative terms, such as “beneath,” “below,” “lower,” “above,”“upper,” and/or the like, may be used herein for descriptive purposesand, thereby, to describe one element or feature's relationship toanother element(s) or feature(s) as illustrated in the drawings.Spatially relative terms are intended to encompass differentorientations of an apparatus in use or operation in addition to theorientation depicted in the drawings. For example, if the apparatus inthe drawings is turned over, elements described as “below” or “beneath”other elements or features would then be oriented “above” the otherelements or features. Thus, the exemplary term “below” can encompassboth an orientation of above and below. Furthermore, the apparatus maybe otherwise oriented (e.g., rotated 90 degrees or at otherorientations) and, as such, the spatially relative descriptors usedherein are to be interpreted accordingly.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting. As used herein, thesingular forms “a,” “an,” and “the” are intended to include the pluralforms as well, unless the context clearly indicates otherwise. Moreover,the terms “comprises” and/or “comprising,” when used in thisspecification, specify the presence of stated features, integers, steps,operations, elements, and/or components, but do not preclude thepresence or addition of one or more other features, integers, steps,operations, elements, components, and/or groups thereof.

Various exemplary embodiments may be described herein with reference tosectional and/or other forms of illustrations that are schematicillustrations of idealized exemplary embodiments and/or intermediatestructures. As such, variations from the shapes of the illustrations asa result, for example, of manufacturing techniques and/or tolerances,are to be expected. Thus, exemplary embodiments disclosed herein shouldnot be construed as limited to the particular illustrated shapes ofregions, but are to include deviations in shapes that result from, forinstance, manufacturing. For instance, an implanted region illustratedas a rectangle will, typically, have rounded or curved features and/or agradient of implant concentration at its edges rather than a binarychange from implanted to non-implanted region. Likewise, a buried regionformed by implantation may result in some implantation in the regionbetween the buried region and the surface through which the implantationtakes place. Thus, the regions illustrated in the drawings are schematicin nature and their shapes are not intended to illustrate the actualshape of a region and are not intended to be limiting.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this disclosure is a part. Terms,such as those defined in commonly used dictionaries, should beinterpreted as having a meaning that is consistent with their meaning inthe context of the relevant art and will not be interpreted in anidealized or overly formal sense, unless expressly so defined herein.

Although various exemplary embodiments are described with respect toliquid crystal displays (LCD), it is contemplated that various exemplaryembodiments are also applicable to other display technologies, such asvarious other self-emissive and/or non-self-emissive displaytechnologies, e.g., light emitting diode (LED) displays, organic lightemitting diode displays (OLED), plasma displays (PD), electrophoreticdisplays (EPD), electrowetting displays (EWD), etc.

FIG. 1 is a block diagram of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments. FIG. 2 is an enlargedplan view of portion “A” of the sensing display panel of FIG. 1.

As seen in FIGS. 1 and 2, the display apparatus includes a sensingdisplay panel 510, a sensing driving circuit 610 and a sensing read outcircuit 710. While specific reference will be made to this particularimplementation, it is also contemplated that the display apparatus mayembody many forms and include multiple and/or alternative components orfeatures. For example, it is contemplated that the components of thedisplay apparatus may be combined, located in separate structures,and/or separate locations.

According to exemplary embodiments, the sensing display panel 510includes a plurality of driving electrode patterns ST1, ST2, ST3, . . ., STN, a plurality of sensing electrode patterns SR1, SR2, SR3, . . . ,SRM, and a plurality of bridge lines BL, where ‘n’ and ‘m’ are natural,real numbers. In one exemplary implementation, the sensing display panel510 may define a capacitive touch screen; however, it is contemplatedthat sensing display panel 510 may define or otherwise include any othersuitable sensing display panel.

The driving electrode patterns ST1, ST2, ST3, . . . , STN may beextended in association with a first direction, e.g., D1, and may bearranged in association with a second direction, e.g., D2 crossing thefirst direction D1. The first direction D1 may be, for example, a rowdirection, whereas the second direction D2 may be, for instance, acolumn direction. Each of the driving electrode patterns ST1, ST2, ST3,. . . , STN includes (or otherwise defines) at least one first unitpattern UP1, such as a diamond shape. It is contemplated, however, thatany suitable pattern (or pattern of shapes) may be utilized inassociation with first unit pattern UP1. As shown, the first unitpattern UP1 includes a plurality of driving lines TL, which areconnected to each other, such as via a mesh shape. Again, it iscontemplated that any suitable pattern (or pattern of shapes) may beutilized in association with the corresponding connections betweendriving lines TL. The driving lines TL overlap with a black matrixpattern BM. The black matrix pattern BM may define a transmission areacorresponding to a pixel area PA of the sensing display panel 510. Forinstance, black matrix pattern BM may bound respective display regionsof corresponding pixels of sensing display panel 510.

According to exemplary embodiments, the sensing electrode patterns SR1,SR2, SR3, . . . , SRM may be extended in association with the seconddirection D2 and may be arranged in association with the first directionD1. Each of the sensing electrode patterns SR1, SR2, SR3, . . . , SRMincludes at least one second unit pattern UP2, such as the diamondshape. As with first unit pattern UP1, it is contemplated, that anysuitable pattern (or pattern of shapes) may be utilized in associationwith second unit pattern UP2. To this end, it is noted that second unitpattern UP2 may or may not correspond to first unit pattern UP1. Forinstance, first unit pattern UP1 may relate to a pattern of diamondshapes, whereas second unit pattern UP2 may relate to a pattern ofhexagonal shapes. As shown, however, first unit pattern UP1 and secondunit pattern UP2 both correspond to diamond patterns. The second unitpattern UP2 may be disposed in an area defined by the first unit patternUP1 and may be arranged alternately with the first unit pattern UP1along a third direction, e.g., D3, respectively crossing the firstdirection D1 and the second direction D2. The second unit pattern UP2includes a plurality of sensing lines RL, which may be connected to eachother, such as via the mesh shape. Again, it is contemplated that anysuitable pattern (or pattern of shapes) may be utilized in associationwith the corresponding connections between sensing lines RL. Further,the shape associated with the connections related to sensing lines RLmay or may not corresponding to the shape associated with theconnections related to driving lines TL. The sensing lines RL may, inexemplary embodiments, overlap with the black matrix pattern BM, whichmay be configured to define the pixel area PA of the display apparatus.

As previously mentioned, the driving electrode patterns ST1, ST2, ST3, .. . , STN and the sensing electrode pattern SR1, SR2, SR3, . . . , SRMmay include a plurality of unit patterns, such as the diamond shape, butare not limited thereto. For example, the unit patterns may includevarious shapes, such as triangular shapes, square shapes, rectangularshapes, pentagonal shapes, hexagonal shapes, etc., as well ascombinations thereof.

In exemplary embodiments, the bridge lines BL may be disposed in an area(or region) in which the sensing lines RL and the driving lines TL crossone another. To this end, the bridge lines BL may be electricallyconnected to the driving lines TL, which are spaced apart from eachother via the sensing lines RL. In one exemplary embodiment, the bridgelines BL are connected to the driving lines TL, but exemplaryembodiments are not limited thereto. For example, the bridge lines BLmay be connected to the sensing lines RL, may be connected to both thedriving lines TL and the sensing lines RL, etc.

Sensing driving circuit 610 may be configured to sequentially transfer aplurality of driving signals Tx1, Tx2, Tx3, . . . , TxN to the drivingelectrode patterns ST1, ST2, ST3, . . . , STN to drive the drivingelectrode patterns ST1, ST2, ST3, . . . , STN.

The sensing read out circuit 710 may be configured to receive sensingsignals Rx1, Rx2, Rx3, . . . , RxM corresponding to, for example, anobject that touches (or otherwise comes into contact with) a surface ofthe sensing display panel 510 based on the driving signals through thesensing electrode patterns SR1, SR2, SR3, . . . , SRM. According toexemplary embodiments, it is also contemplated that “near” touches (orcontacts), e.g., when the object just about touches the surface but doesnot quite touch the surface, may also be detected based on detectedvariances of the driving signals through the sensing electrode patternsSR1, SR2, SR3, . . . , SRM.

According to various exemplary embodiments, sensing driving circuit 610and/or the sensing read out circuit 710 may be implemented via software,hardware, firmware, or a combination thereof. For instance, sensingdriving circuit 610 and/or the sensing read out circuit 710 may beimplemented via one or more general purpose and/or special purposecomponents, such as one or more discrete circuits, digital signalprocessing chips, integrated circuits, application specific integratedcircuits, microprocessors, processors, programmable arrays, fieldprogrammable arrays, instruction set processors, and/or the like.

According to exemplary embodiments, the sensing display panel 510 may beprotected by the driving electrode patterns ST1, ST2, ST3, . . . , STNand the sensing electrode patterns SR1, SR2, SR3, . . . , SRM, which maybe formed from corresponding metal materials. For example, the sensingdisplay panel 510 may be protected by the driving electrode patternsST1, ST2, ST3, . . . , STN and the sensing electrode patterns SR1, SR2,SR3, . . . , SRM from static electricity, e.g., static electricitybuild-up, static electricity discharge, etc. In this manner, the sensingdisplay panel 510 may be configured without a static electricityblocking layer conventionally utilized to block the deleterious effectsassociated with static electricity, such as one or more of thoseaforementioned effects.

In exemplary embodiments, at least one of the sensing driving circuit610 and the sensing read out circuit 710 is configured to output a biassignal exhibiting a predetermined voltage level when the sensing displaypanel 510 is being driven. To this end, the bias signal exhibiting thepredetermined voltage level may be applied to the driving electrodepatterns ST1, ST2, ST3, . . . , STN or the sensing electrode patternsSR1, SR2, SR3, . . . , SRM when the sensing display panel 510 is beingdriven. The bias signal may be a ground voltage or a direct current (DC)voltage exhibiting a predetermined voltage level. As such, a staticelectricity blocking effect may be improved.

FIG. 3 is a cross-sectional view of the sensing display panel of FIG. 2taken along sectional line I-I′, according to exemplary embodiments.

With continued reference to FIG. 2, the sensing display panel 510includes a display substrate 100, a sensor substrate 200 opposite thedisplay substrate 100, and a liquid crystal layer 300 disposed betweenthe display substrate 100 and the sensor substrate 200. In addition, thesensing display panel 510 may further include a first polarizing plate410 disposed on the sensor substrate 200 and a second polarizing plate430 disposed on (e.g., under) the display substrate 100.

Display substrate 100 includes a first base substrate 101, a gate lineGL, a gate insulating layer 110, a data line DL, a switching element TR,a pixel electrode PE, a protecting layer 130, and a common electrode CE.

Gate line GL is disposed on the first base substrate 101, and may beextended in the first direction D1, as well as arranged in the seconddirection D2. For example, the gate line GL may overlap the black matrixpattern BM, which may also be extended in the first direction D1. Tothis end, the gate line GL may be electrically connected to a gateelectrode GE of the switching element TR.

Gate insulating layer 110 may be disposed on the first base substrate101 and, thereby, configured to cover the gate line GL and the gateelectrode GE.

Data line DL may be disposed on the gate insulating layer 110 andextended in the second direction D2, as well as arranged in the firstdirection D1. For example, the data line DL may overlap with the blackmatrix pattern BM, which may also be extended in the second directionD2. The data line DL may be electrically connected to a source electrodeSE of the switching element TR.

According to exemplary embodiments, the switching element TR may includean active layer AC that is disposed between the gate electrode GE andthe source electrode SE and drain electrode DE. The active layer ACincludes, for example, a semiconductive layer manufactured from, forinstance, amorphous silicon (a-Si:H) and an ohmic contact layerexhibiting n+ amorphous silicon (n+ a-Si:H). In addition, the activelayer may include an oxide semiconductive layer. The oxidesemiconductive layer may include the amorphous oxide exhibiting at leastone of indium (In), zinc (Zn), gallium (Ga), tin (Sn), or hafnium (HF).For example, the oxide semiconductive layer may include an amorphousoxide exhibiting indium (In), zinc (Zn), and gallium (Ga), or anamorphous oxide exhibiting indium (In), zinc (Zn), and hafnium (HF). Theoxide semiconductive layer may include the oxide, such as, for instance,indium zinc oxide (InZnO), indium gallium oxide (InGaO), indium tinoxide (InSnO), tin zinc oxide (ZnSnO), tin gallium oxide (GaSnO), andtin gallium oxide (GaZnO). While certain materials and combinations ofmaterials have been described in association with switching element TR,it is contemplated that any other suitable materials may be utilized.

Accordingly, pixel electrode PE may be disposed in the pixel area, whichmay be defined by the black matrix pattern BM. Pixel electrode PE may beelectrically connected to the drain electrode DE and configured toreceive a data voltage transferred via the data line DL.

Protecting layer 130 may be disposed on the first base substrate 101and, thereby, configured to cover the data line DL, the source electrodeSE, and the pixel electrode PE.

Common electrode CE may be disposed in at least one pixel area, as wellas configured to overlap the pixel electrode PE. The common electrode CEmay be a slit patterned electrode; however, any other suitable commonelectrodes may be utilized in association with exemplary embodimentsdescribed herein. Common electrode CE may be electrically connected to acommon line (not shown) and, thereby, configured to receive a commonvoltage Vcom via the common line.

According to exemplary embodiments, the sensor substrate 200 includes asecond base substrate 201, a black matrix pattern BM, a sensor layerSSL, a color filter layer CF, and an overcoating layer OC.

Black matrix pattern BM may be disposed on the second base substrate201, and may be configured to define a transmission area correspondingto the pixel area PA of the sensing display panel 510. The black matrixpattern BM may exhibit a matrix shape, such that the pixel area PAcorresponding to the transmission area may be arranged in associationwith the matrix shape of the black matrix BM.

As described in association with FIGS. 1 and 2, the sensor layer SSLincludes a plurality of driving electrode patterns ST1, ST2, ST3, . . ., STN, a plurality of sensing electrode patterns SR1, SR2, SR3, . . . ,SRM, a bridge line BL, and an insulating layer 210.

Driving electrode patterns ST1, ST2, ST3, . . . , STN may be extended inthe first direction D1 and may be arranged in the second direction D2.Each of the driving electrode patterns ST1, ST2, ST3, . . . , STN mayinclude at least one first unit pattern UP1, such as the diamond shape.The first unit pattern UP1 includes a plurality of driving lines TL,which may be connected to each other via the mesh shape. The drivinglines TL may be configured to overlap the black matrix pattern BM.

Sensing electrode patterns SR1, SR2, SR3, . . . , SRM may be extended inthe second direction D2 and may be arranged in the first direction D1.Each of the sensing electrode patterns SR1, SR2, SR3, . . . , SRM mayinclude at least one second unit pattern UP2, such as the diamond shape.The second unit pattern UP2 may be spaced apart from the first unitpattern UP1. The second unit pattern UP2 may include a plurality ofsensing lines RL, which may be connected to each other, such as via themesh shape. The sensing lines RL may be configured to overlap with theblack matrix pattern BM.

Bridge line BL may be connected to the driving lines TL of the drivingelectrode patterns, which may be spaced apart from each other via thesensing electrode pattern comprising sensing lines RL.

A contact hole CH is configured to expose the driving lines TL of thedriving electrode pattern. The contact hole CH may be formed in theinsulating layer 210. The bridge line BL may be connected to the drivinglines TL via the contact hole CH.

According to exemplary embodiments, sensing display panel 510 may beconfigured as a capacitive touch screen. In this manner, touches and/or“near” touches may be sensed via detection of a capacitive capacitanceCmutual arising between the driving electrode pattern including drivinglines TL and the sensing electrode pattern including sensing lines RL,which may be changed (or otherwise altered) when a conductive object(such as a finger) touches or “near” touches the surface of sensingdisplay panel 510. To this end, a touch position (or location) may alsobe detected based on the position (or location) of the altered sensedcapacitive capacitance. Accordingly, in response to the capacitivecapacitance Cmutual between the driving electrode pattern includingdriving lines TL and the sensing electrode pattern including sensinglines RL being increased, the capacitive touch screen may easily detectthe touch or “near” touch associated with the altered capacitivecapacitance Cmutual.

For example, the capacitive capacitance Cmutual may be increased, when asize of a fringe area disposed between the driving electrode patternincluding driving lines TL and the sensing electrode pattern includingsensing lines RL is increased and a separation distance between thedriving electrode pattern including driving lines TL and the sensingelectrode pattern including sensing lines is decreased.

Color filter layer CF may be disposed on (e.g., under) the sensor layerSSL, and may include a plurality of color filters, such as a red colorfilter R, a green color filter G, a blue color filter B, etc. Whileillustrated beneath sensor layer SSL, it is also contemplated that colorfilter layer CF may be disposed above sensor layer SSL, as will becomemore apparent below, such as, for example, in association with thedescription corresponding to FIGS. 5A-5E. Further, it is contemplatedthat color filter layer CF may be disposed more or less in-line withsensor layer SSL, as will also become more apparent below, such as, forinstance, described in association with FIGS. 6A-6E.

Overcoating layer OC may be disposed on (e.g., under) the color filterlayer CF. In this manner, overcoating layer OC may be utilized to levelout, e.g., ensure a flat (or substantially flat) surface of, the sensorsubstrate 200.

According to exemplary embodiments, the driving electrode patterns ST1,ST2, ST3, . . . , STN and the sensing electrode patterns SR1, SR2, SR3,. . . , SRM formed with suitable metal material may be disposed in thesensor substrate 200 adjacent to an outside surface so that the sensingdisplay panel 510 may be protected from the deleterious effectsassociated with static electricity, e.g., static electricity build-up,static electricity discharge, etc. In this manner, the sensing displaypanel 510 may be configured without a conventional static electricityblocking layer typically formed to block such effects associated withstatic electricity.

FIGS. 4A-4E are cross-sectional views of the sensor substrate of FIG. 3taken along sectional line II-II′ at various stages of one or moremanufacturing processes, according to exemplary embodiments. To thisend, it is noted that the description of FIGS. 4A-4E will be facilitatedvia the proffered description of FIG. 3 and, therefore, the proceedingdescription of FIGS. 4A-4E may include continued references to one ormore components and/or features described in association with FIG. 3.

Adverting to FIG. 4A, a blocking layer is disposed on the second basesubstrate 201. The blocking layer is patterned to yield the black matrixpattern BM via one or more first masks and first patterning processes.

A first metal layer is disposed on the second base substrate 201including the black matrix pattern BM. The first metal layer ispatterned via one or more second masks and second patterning processes.In this manner, the first metal layer may be patterned to form thedriving electrode patterns ST1, ST2, ST3, . . . , STN and the sensingelectrode patterns SR1, SR2, SR3, . . . , SRM. The driving electrodepatterns ST1, ST2, ST3, . . . , STN include a plurality of driving linesTL and the sensing electrode patterns SR1, SR2, SR3, . . . , SRM includea plurality of sensing lines RL. The driving lines TL and the sensinglines RL may be configured to overlap the black matrix pattern BM.

Adverting to FIG. 4B, an insulating layer 210 is disposed on the secondbase substrate 201 including the driving lines TL and the sensing linesRL. The insulating layer 210 may be patterned via one or more thirdmasks and third patterning processes to form the contact hole CH, whichmay be configured to expose at least a portion of the driving lines TL.The insulating layer 210 may include silicon nitride (SiNx), siliconoxide (SiOx), and/or any other suitable material, composite, etc. Tothis end, the insulating layer 210 may be formed via, for example, oneor more plasma enhanced chemical vapor deposition (PECVD) techniques. Itis contemplated, however, that any other suitable depository, epitaxial,growth, sputtering, etc., techniques may be utilized. In addition, theinsulating layer 210 may include a plurality of layers, e.g., a doublelayer, formed via one or more similar or different manufacturingprocesses, as well as exhibit similar or different materials from oneanother.

With reference to FIG. 4C, a second metal layer is disposed on the firstmetal layer, which includes the contact hole CH formed therein. Thesecond metal layer may be patterned via one or more fourth masks andfourth manufacturing processes to form the bridge line BL. The bridgeline BL may be connected to the driving lines TL via the contact holeCH.

As seen in FIG. 4D, a plurality of color filters R, G and B may besequentially disposed on the second base substrate 201 including thesecond metal layer from which the bridge line BL is patterned.

Adverting to FIG. 4E, an overcoating layer OC is disposed on the colorfilters R, G and B. In exemplary embodiments, overcoating layer OC maybe planarized so that a surface of the sensor substrate 200 is flat orsubstantially flat.

According to exemplary embodiments, the aforementioned manufacturingprocesses may further include forming the above-noted electrode pattern,the contact hole of the insulating layer, and the bridge line usingthree (3) masks to form a color filter substrate of the LCD. In anyevent, the sensor substrate formed thereby may include the drivingelectrode pattern including driving lines TL and the sensing electrodepattern including the sensing lines RL, which may be configured toenable sensation of touches of and/or “near” touches to a surface of thesensor substrate, as well as configured to prevent the deleteriouseffects associated with static electricity.

FIGS. 5A-5E are cross-sectional views of a sensor substrate at variousstages of a manufacturing process, according to exemplary embodiments.It is noted that the sensor substrate manufactured in association withthe methodology described in connection with FIGS. 5A-5E is alsoillustrated in cross-sectional view based on sectional line II-II′ ofFIG. 2. To this end, it is also noted that the description of FIGS.5A-5E will be facilitated via the proffered description of FIG. 2 and,therefore, the proceeding description of FIGS. 5A-5E may includecontinued references to one or more components and/or features describedin association with FIG. 2.

According to exemplary embodiments, manufacturing of a sensor substratemay further include disposing a sensor layer after manufacturing of acolor filter substrate.

For example, as seen in FIG. 5A, the black matrix pattern BM is disposedon the second base substrate 201. The color filter layer CF is disposedon the black matrix pattern BM. A first insulating layer 210 (orovercoating layer OC) is disposed on the color filter layer CF. Asdescribed above, the color filter substrate included in the display maybe generally manufactured utilizing any suitable manufacturingtechnique, such one or more of the aforementioned manufacturingtechniques.

Adverting to FIG. 5B, the first metal layer is disposed on the secondbase substrate 201 including the insulating layer 210. The first metallayer may be patterned via one or more first masks and first patterningprocesses to form the driving electrode patterns ST1, ST2, ST3, . . . ,STN and the sensing electrode patterns SR1, SR2, SR3, . . . , SRM. Thedriving electrode patterns ST1, ST2, ST3, . . . , STN include aplurality of driving lines TL, and the sensing electrode patterns SR1,SR2, SR3, . . . , SRM include a plurality of sensing lines RL. Thedriving lines TL and the sensing lines RL may be configured to overlapthe black matrix pattern BM.

With reference to FIG. 5C, a second insulating layer 210 is disposed onthe second base substrate 201 including the driving lines TL and thesensing lines RL. As such, the second insulating layer 210 may bepatterned via one or more second masks and second patterning processesto form the contact hole CH, which may be configured to expose at leasta portion of the driving lines TL. The second insulating layer 210 mayinclude silicon nitride (SiNx), silicon oxide (SiOx), and/or any othersuitable material, composite, etc. To this end, the second insulatinglayer 210 may be formed via, for example, one or more plasma enhancedchemical vapor deposition (PECVD) techniques. It is contemplated,however, that any other suitable depository, epitaxial, growth,sputtering, etc., techniques may be utilized. In addition, the secondinsulating layer 210 may include a plurality of layers, e.g., a doublelayer, formed via one or more similar or different manufacturingprocesses, as well as exhibit similar or different materials from oneanother.

Adverting to FIG. 5D, the second metal layer is disposed on the secondbase substrate 201 including the second insulating layer 210 from whichthe contact hole CH is formed. The second metal layer may be patternedvia one or more third masks and third patterning processes to form thebridge line BL. The bridge line BL may be connected to the driving linesTL via the contact hole CH.

As seen in FIG. 5E, the overcoating layer OC is disposed on the secondbase substrate 201 including the bridge line BL. In exemplaryembodiments, overcoating layer OC may be planarized so that a surface ofthe sensor substrate 200 is flat or substantially flat.

According to exemplary embodiments, the aforementioned manufacturingprocesses may further include forming the above-noted color filtersubstrate using four (4) additional masks. Again, the sensor substrateformed thereby may be configured to enable sensation of touches and/or“near” touches to a surface of the sensor substrate, as well asconfigured to prevent the deleterious effects associated with staticelectricity.

FIGS. 6A-6E are cross-sectional views of a sensor substrate at variousstages of a manufacturing process, according to exemplary embodiments.It is noted that the sensor substrate manufactured in association withthe methodology described in connection with FIGS. 6A-6E is alsoillustrated in cross-sectional view based on sectional line II-II′ ofFIG. 2. To this end, it is also noted that the description of FIGS.6A-6E will be facilitated via the proffered description of FIG. 2 and,therefore, the proceeding description of FIGS. 6A-6E may includecontinued references to one or more components and/or features describedin association with FIG. 2.

As seen in FIG. 6A, the first metal layer is disposed on the second basesubstrate 201. The first metal layer may be patterned via one or morefirst masks and first patterning processes to form the bridge line BL.

Adverting to FIG. 6B, the blocking layer is disposed on the second basesubstrate 201 including the bridge line BL. The blocking layer may bepatterned via one or more second masks and patterning processes to formthe black matrix pattern BM. According to exemplary embodiments, thecontact hole CH is formed in the black matrix pattern BM and configuredto expose at least a portion of the bridge line BL.

With reference to FIG. 6C, the second metal layer is disposed on thesecond base substrate 201 including the black matrix pattern BM, inwhich the contact hole CH is formed. The second metal layer may bepatterned via one or more third masks and third patterning processes toform the driving electrode patterns ST1, ST2, ST3, . . . , STN and thesensing electrode patterns SR1, SR2, SR3, . . . , SRM. The drivingelectrode patterns ST1, ST2, ST3, . . . , STN include a plurality ofdriving lines TL and the sensing electrode patterns SR1, SR2, SR3, . . ., SRM include a plurality of sensing lines RL. The driving lines TL andthe sensing lines RL overlap the black matrix pattern BM.

As seen in FIG. 6D, the color filters R, G and B are sequentiallydisposed on the base substrate 201 including the driving lines TL andthe sensing lines RL.

Adverting to FIG. 6E, the overcoating layer OC is disposed on the basesubstrate 201 including the color filters R, G, and B. In exemplaryembodiments, overcoating layer OC may be planarized so that a surface ofthe sensor substrate 200 is flat or substantially flat.

As described in association with FIGS. 6A-6E, manufacturing of thesensor substrate may achieved via a smaller number of masks incomparison to the previous two exemplary manufacturing processes. In anyevent, however, the sensor substrate manufactured in association withthe process of FIGS. 6A-6E may be configured to enable sensation oftouches and/or “near” touches to a surface of the sensor substrate, aswell as configured to prevent the deleterious effects associated withstatic electricity.

FIG. 7 is a waveform diagram associated with driving the sensing displaypanel of FIG. 1, according to exemplary embodiments.

With reference to FIGS. 1 and 7, the sensing display panel 510configured to improve a static electricity blocking effect may be drivenin association with one or more of the waveforms seen in FIG. 7.

According to exemplary embodiments, the sensing driving circuit 610 maybe configured to sequentially provide first to N-th driving electrodepatterns ST1, ST2, ST3, . . . , STN with first to N-th driving signalsTx1, Tx2, Tx3, . . . , TxN. Each of the first to N-th driving signalsTx1, Tx2, Tx3, . . . , TxN include at least one pulse during a sensinghorizontal period S_H.

For example, when a first driving signal Tx1 is applied to a firstdriving electrode pattern ST1, a bias signal (such as a ground voltageGND or a direct current (DC) voltage exhibiting a predetermined voltagelevel) may be applied to the remainder second to N-th driving electrodepatterns ST2, ST3, . . . , STN, i.e., all of the driving electrodepatterns except for the first driving electrode pattern ST1. Asdescribed above, when a second driving signal Tx2 is applied to a seconddriving electrode pattern ST2, a bias signal such as a ground voltageGND or a DC voltage exhibiting a predetermined voltage level may beapplied to the remainder of the driving electrode patterns, such as thefirst driving electrode pattern ST1 and the third to N-th drivingelectrode patterns ST3, . . . , STN, i.e., all of the driving electrodepatterns except for the second driving electrode pattern ST2.

The sensing read out circuit 710 may be configured to receive first toM-th sensing signals Rx1, Rx2, Rx3, . . . , RxM transited via the firstto M-th sensing electrode patterns SR1, SR2, SR3, . . . , SRM.

While not shown, a sensing control part may be configured to detect aposition of an object that has touched (or nearly touched) the surfaceof the sensing display panel 510 based on the output associated with thefirst to M-th sensing signals Rx1, Rx2, Rx3, . . . , RxM received by thesensing read out circuit 710.

Accordingly, while the sensing display panel 510 is being driven, thedriving signal and the bias signal may be caused to be applied to thefirst to N-th driving electrode patterns ST1, ST2, ST3, . . . , STN sothat a static electricity blocking effect may be improved.

FIG. 8 is a waveform diagram associated with driving a sensing displaypanel, according to exemplary embodiments.

With reference to FIGS. 1 and 8, the sensing display panel 510configured to improve a static electricity blocking effect may be drivenin association with one or more of the waveforms seen in FIG. 8.

According to exemplary embodiments, the sensing driving circuit 610 maybe configured to sequentially provide first to N-th driving electrodepatterns ST1, ST2, ST3, . . . , STN with first to N-th driving signalsTx1, Tx2, Tx3, . . . , TxN. Each of the first to N-th driving signalsTx1, Tx2, Tx3, . . . , TxN include at least one pulse during a sensinghorizontal period S_H.

For example, when a first driving signal Tx1 is applied to a firstdriving electrode pattern ST1, the sensing driving circuit 610 may beconfigured to block a voltage from being applied to the remainder of thedriving electrode patterns, i.e., the second to N-th driving electrodepatterns ST2, ST3, . . . , STN, i.e., all of the driving electrodepatterns except for the first driving electrode pattern ST1. As such,the second to N-th driving electrode patterns ST2, ST3, . . . , STN maybe electrically floated or otherwise isolated. As described above, whena second driving signal Tx2 is applied to a second driving electrodepattern ST2, the sensing driving circuit 610 may be further configuredto block a voltage from being applied to the remainder of the drivingelectrode patterns, i.e., the first driving electrode pattern ST1 andthird to N-th driving electrode patterns ST3, . . . , STN, i.e., all ofthe driving electrode patterns except for the second driving electrodepattern ST2. In this manner, the first driving electrode pattern ST1 andthe third to N-th driving electrode patterns ST3, . . . , STN may beelectrically floated or otherwise isolated.

According to exemplary embodiments, the sensing read out circuit 710 maybe configured to provide the first to M-th sensing electrode patternsSR1, SR2, SR3, . . . , SRM with a bias signal, such as a ground voltageGND or a DC voltage exhibiting a predetermined voltage level, while thesensing display panel 510 is being driven. The sensing read out circuit710 may be further configured to receive first to M-th sensing signalsRx1, Rx2, Rx3, . . . , RxM transited via the first to M-th sensingelectrode patterns SR1, SR2, SR3, . . . , SRM.

As described above, while the sensing display panel 510 is being driven,the bias signal may be applied to the first to M-th sensing electrodepatterns SR1, SR2, SR3, . . . , SRM and, as such, a static electricityblocking effect may be improved.

While not illustrated, a sensing control part may be provided to detecta position of an object touching or nearly touching a surface of thesensing display panel 510 based on the output of the first to M-thsensing signals Rx1, Rx2, Rx3, . . . , RxM received by the sensing readout circuit 710.

While also not depicted, the sensing display panel 510 may be driven bythe sensing driving circuit 610 as shown in FIG. 7 and the sensing readout circuit 710 as shown in FIG. 8. For example, a remainder of thedriving electrode patterns, except for the driving electrode patternwhich receives the driving signal, may be configured to receive the biassignal, such as a ground voltage GND or a DC voltage exhibiting apredetermined voltage level, as shown in FIG. 7. In addition, while thesensing display panel 510 is being driven, the bias signal may beapplied to the first to M-th sensing electrode patterns SR1, SR2, SR3, .. . , SRM, as shown in FIG. 8.

FIG. 9 is a plan view of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments. As previously noted,same reference numerals are used to refer to the same or like componentsas those previously described. As such, corresponding descriptions arenot repeated, unless furtherance of exemplary embodiments would befacilitated by such duplicative description.

With reference to FIGS. 1, 2, and 9, the sensing display panel 511 issubstantially similar to sensing display panel 510, except for thecorresponding shapes of the driving electrode pattern and the sensingelectrode pattern.

As seen in FIG. 9, each of the driving electrode patterns ST1, ST2, ST3,. . . , STN includes at least one first unit pattern UP1. The first unitpattern UP1 exhibits a diamond shape and may be divided into a firstportion and a second portion surrounding the first portion. A pluralityof driving lines TL, which are connected to one another, such as via ina mesh shape, is disposed in the second portion of the first unitpattern UP1. It is noted, however, that the driving lines TL areexcluded from the first portion of the first unit pattern UP1. Forexample, the first portion of the first unit pattern UP1 may beconfigured similarly to diamond-shaped annulus, e.g., a diamond-shapeddonut.

According to exemplary embodiments, each of the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM includes at least one second unitpattern UP2. The second unit pattern UP2 may also exhibit a diamondshape and may be divided into a first portion and a second portionsurrounding the first portion. A plurality of sensing lines RL, whichmay be connected to one another, such as in a mesh shape, is disposed inthe second portion of the second unit pattern UP2. It is noted, however,that the sensing lines RL may be excluded from the first portion of thesecond unit pattern UP2. For example, the first portion of the secondunit pattern UP2 may be configured similarly to diamond-shaped annulus,e.g., a diamond-shaped donut.

According to one exemplary implementation, the sensing display panel 511may be configured as a capacitive touch screen and, thereby, may beconfigured to exhibit a capacitive capacitance Cmutual establishedbetween the first and second unit patterns UP1 and UP2. To this end, aparasitic capacitance Cparasitic may be established between the unitpatterns UP1 and UP2 and the common electrode CE. The performed of sucha capacitive touch screen may be increased as the capacitive capacitanceCmutual is increased and the parasitic capacitance Cparasitic isdecreased.

According to exemplary embodiments, the metal pattern, such as thedriving and sensing lines TL and RL, is disposed in the second portionwhere a degree of contribution from the capacitive capacitance Cmutualis relatively large. Further, the metal pattern is excluded from thefirst portion, where a degree of contribution from the capacitivecapacitance Cmutual is relatively small. As such, the parasiticcapacitance Cparasitic of the sensing display panel 511 may be decreasedand, thereby, performance increased.

In exemplary embodiments, the first unit pattern UP1 and the second unitpattern UP2 may include the first portion excluded from the metalpattern so that resistance-capacitance (RC) delay may be decreased. Incomparison to the sensing display panel 510, a reliability of signalstransferred via the driving electrode patterns ST1, ST2, ST3, . . . ,STN and sensing electrode patterns SR1, SR2, SR3, . . . , SRM of sensingdisplay panel 511 may be increased.

Further, the driving electrode patterns ST1, ST2, ST3, . . . , STN andthe sensing electrode patterns SR1, SR2, SR3, . . . , SRM that areformed with the metal material may be disposed in the sensor substrate200 adjacent to an outside of display panels 510 and 511 so that thesensing display panels 510 and 511 may be protected from staticelectricity, e.g., static electricity build-up and/or discharge.Accordingly, the sensing display panels 510 and 511 may be configured toomit conventional static electricity blocking layers typically utilizedto block such effects associated with static electricity.

FIG. 10 is a plan view of a display apparatus incorporating a sensingdisplay panel, according to exemplary embodiments. As previously noted,same reference numerals are used to refer to the same or like componentsas those previously described. As such, corresponding descriptions arenot repeated, unless furtherance of exemplary embodiments would befacilitated by such duplicative description.

With reference to FIGS. 1, 2, and 10, the sensing display panel 512 issubstantially similar to sensing display panels 510 and 511, except forthe corresponding shapes of the driving electrode pattern and thesensing electrode pattern.

As seen in FIG. 10, each of the driving electrode patterns ST1, ST2,ST3, . . . , STN includes at least one first unit pattern UP1. The firstunit pattern UP1 exhibits a diamond shape and may be divided into afirst portion and a second portion surrounding the first portion andbeing spaced from the first portion. A plurality of driving lines TLthat is connected to one another, such as in a mesh shape, is disposedin the second portion of the first unit pattern UP1. A first dummypattern DM1 may be disposed in the first portion of the first unitpattern UP1. The first dummy pattern DM1 may include a plurality ofdriving lines TL connected to one another, such as in a mesh shape. Thedriving lines TL in the first portion may not be connected to thedriving lines TL in the second portion. As such, the driving signalapplied to the driving lines TL in the second portion may not be appliedto the first dummy pattern DM1.

According to exemplary embodiments, each of the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM includes at least one second unitpattern UP2. The second unit pattern UP2 exhibits a diamond shape. Thesecond unit pattern UP2 includes a first portion and a second portionsurrounding the first portion and being spaced apart from the firstportion. A plurality of sensing lines RL that are connected to oneanother, such as in a mesh shape, may be disposed in the second portionof the second unit pattern UP2. A second dummy pattern DM2 is disposedin the first portion of the second unit pattern UP2. The second dummypattern DM2 may include a plurality of sensing lines RL which areconnected to one another, such as in a mesh shape. The sensing lines RLin the first portion may not be connected to the sensing lines RL in thesecond portion. As such, a driving signal applied to the sensing linesRL in the second portion may not be applied to the second dummy patternDM2.

In exemplary embodiments, the metal pattern, such as the driving linesTL and the sensing lines RL may be disposed in the second portion inwhich a degree of contribution of capacitive capacitance Cmutual isrelatively large. It is noted, however, that the metal pattern iselectrically floated in the first portion in which a degree ofcontribution of the capacitive capacitance Cmutual is relative small.Accordingly, the parasitic capacitance Cparasitic of the sensing displaypanel 512 may be decreased.

To this end, the first unit patterns UP1 and the second unit patternsUP2 may be configured to include a dummy pattern electrically floated sothat RC delay may be decreased. In comparison to the sensing displaypanel 510, a reliability of signals transited via the driving electrodepatterns ST1, ST2, ST3, . . . , STN and the sensing electrode patternsSR1, SR2, SR3, . . . , SRM may be increased.

Additionally, the driving electrode patterns ST1, ST2, ST3, . . . , STNand the sensing electrode patterns SR1, SR2, SR3, . . . , SRM mayinclude the first and second dummy patterns, which may be configured toinclude metal. As such, a static electricity blocking effect and a touchsensing sensitivity may be improved in comparison to the sensing displaypanel 511. In this manner, the sensing display panel 512 may also beconfigured without conventional static electricity blocking layerstypically utilized to block effects associated with static electricity.

FIG. 11A is a plan view of a sensing display panel, according toexemplary embodiments. FIG. 11B is a schematic diagram of the sensingdisplay panel of FIG. 11A.

Referring to FIG. 11A, the sensing display panel 513 may besubstantially similar to the sensing display panels 510 and 511, exceptfor the corresponding shapes of the driving electrode pattern andsensing electrode pattern.

According to exemplary embodiments, each of the driving electrodepatterns ST1, ST2, ST3, . . . , STN includes a plurality of electroderows ET1 and ET2. In this manner, each of the electrode rows ET1 andET2, in turn, includes at least one first unit pattern UP1. The firstunit pattern UP1 exhibits a diamond shape and includes a plurality ofdriving lines TL that are connected to one another, such as in a meshshape. A size of the first unit pattern UP1, according to exemplaryembodiments, may be smaller than that those previously described.

For example, when each of the driving electrode patterns ST1, ST2, ST3,. . . , STN includes K electrode rows ET1, . . . , ETK (where K is anatural, real number), the size of the first unit pattern UP1 may besmaller than 1/K² times the size of the first unit pattern UP1 accordingto one or more of the previous described exemplary embodiments.

According to exemplary embodiments, each of the driving electrodepatterns ST1, ST2, ST3, . . . , STN include a plurality of electroderows ET1 and ET2 that are connected to one another. As seen in FIG. 11A,the electrode rows ET1 and ET2 are connected to one another via a firstsignal line L1, which is disposed on each of a plurality of peripheralareas oppositely disposed to one another. While not depicted, the firstunit pattern UP1 included in the first electrode row ET1 may beconnected to the first unit pattern UP1 included in the second electroderow ET2 adjacent to the first electrode row ET1 in the column direction,so that the electrode rows ET1 and ET2 are electrically connected to oneanother. In this manner, the first driving electrode pattern ST1 may beconfigured to receive the driving signal from the sensing drivingcircuit 610 via a dual mode via the first signal lines L2 connected toboth ends of the first driving electrode pattern ST1.

Alternatively (or additionally), the signal line L1 may be connected toone end of the driving electrode pattern. To this end, the drivingelectrode pattern may be configured receive the driving signal from thesensing driving circuit 610 via a single mode via the signal line L1connected to one end of the driving electrode pattern. For example, whenthe driving electrode pattern is an odd-numbered row, such as the firstdriving electrode pattern, a signal line L1 connected to a first end ofthe first driving electrode pattern may receive the driving signal. Whenthe driving electrode pattern is an even-numbered row, such as thesecond driving electrode pattern, a signal line L1 connected to a secondend opposite to the first end of the second driving electrode patternmay receive the driving signal.

According to exemplary embodiments, each of the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM includes a plurality of electrodecolumns ER1 and ER2 which are connected to one another. Each of theelectrode columns ER1 and ER2 includes at least one second unit patternUP2. The second unit pattern UP2 may also exhibit a diamond shape andmay be configured to include a plurality of sensing lines RL which areconnected to one another, such as in a mesh shape. A size of the secondunit pattern UP2 may be smaller than that of the previously describedsecond unit patterns.

For example, when each of the sensing electrode patterns SR1, SR2, SR3,. . . , SRM includes K electrode columns ER1, . . . , ERK (where K is anatural, real number), the size of the second unit pattern UP2exhibiting the diamond shape may be smaller than 1/K² times the size ofthe second unit pattern UP2 according to the previously describedexemplary embodiments.

According to exemplary embodiments, each of the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM includes a plurality of electrodecolumns ER1 and ER2, which are connected to one another. As seen in FIG.11A, the electrode columns ER1 and ER2 are electrically connected to oneanother via a second signal line L2, which is disposed on each of theperipheral areas disposed opposite to one another. While notillustrated, the second unit pattern UP2 included in the first electrodecolumn ER1 may be connected to the second unit pattern UP2 included inthe second electrode column ER2 adjacent to the first electrode columnER1 in the row direction, so that the electrode columns ER1 and ER2 areelectrically connected to one another.

In this manner, the first sensing electrode pattern SR1 may pass thesensing signal to the sensing read out circuit 710 by a dual mode viathe second signal lines L2 connected to both ends of the first sensingelectrode pattern SR1. The first sensing electrode pattern SR1 may alsoreceive the bias signal from by the dual mode via the second signallines L2 connected to the both ends of the first sensing electrodepattern SR1.

Alternatively (or additionally), the signal line L2 may be connected toone end of the sensing electrode pattern. In this manner, the sensingelectrode pattern may pass the sensing signal L2 to the sensing read outcircuit 710 by a single mode via the signal line L2 connected to one endof the sensing electrode pattern. For example, when the sensingelectrode pattern is an odd-numbered column, such as the first sensingelectrode pattern, a signal line L2 connected to a first end of thefirst sensing electrode pattern may pass the sensing signal. When thesensing electrode pattern is an even-numbered column, such as the secondsensing electrode pattern, a signal line L2 connected to a second endopposite to the first end of the second sensing electrode pattern maypass the sensing signal.

According to exemplary embodiments, the size of the first and secondunit patterns UP1 and UP2 may be decreased and a fringe area of thefirst and second unit patterns UP1 and UP2, which substantially formsthe capacitive capacitance Cmutual, may be increased.

In this manner, the size of the first unit pattern UP1 and the secondunit pattern UP2 is 1/K² times as small as those of the previouslydescribed exemplary embodiments, and the fringe area of the first unitpattern UP1 and the second unit pattern UP2 is K times as large as thoseof the previous exemplary embodiments. Therefore, the capacitivecapacitance Cmutual corresponding to the fringe area of the first unitpattern UP1 and the second unit pattern UP2 may be increased.

In addition, the size of the first unit pattern UP1 and the second unitpattern UP2 may be decreased so that an area which metal material isformed may be decreased. Thus, an RC delay of the first unit pattern UP1and the second unit pattern UP2 may be improved.

According to exemplary embodiments, the capacitive capacitance Cmutualis increased so that the touch sensing and RC delay may be improved. Inaddition, and with continued reference to FIGS. 11A and 11B, a sensorresistance of the driving electrode pattern and the sensing electrodepattern is improved and a line resistance of the signal line may bedecreased.

For example, when the first driving electrode pattern ST1 includes thefirst and second electrode rows ET1 and ET2, such as in a dual routingstructure, an accumulated resistance of the sensor and the line may bein correspondence with Expression (1).

It is noted that a resistance of the first driving electrode pattern ST1may be referred to as c Ω, each resistance of the first signal lines L1,which are connected to both ends of the first driving electrode patternST1, may be referred to as a Ω, a resistance of the first electrode rowET1 may be referred to as b Ω, and a resistance of the second electroderow ET2 may be referred to as c-b Ω.

$\begin{matrix}\begin{matrix}{R = \frac{\left( {a + b} \right) \times \left( {c - b + a} \right)}{\left( {a + b} \right) + \left( {c - b + a} \right)}} \\{= {\frac{a^{2} + {ac} + {bc} - b^{2}}{{2a} + c}\mspace{14mu}\left( {{wherein},{b = \frac{c}{2}}} \right)}} \\{= \frac{{2a} + c}{4}}\end{matrix} & {{Expression}\mspace{14mu}(1)}\end{matrix}$

As can be discerned from Expression (1), the accumulated resistance maybe decreased by as much as about ¼ times. According to exemplaryembodiments, the dual routing structure of the driving electrode patternmay enable the sensing display panel 513 to become relatively large.

While not depicted, the driving electrode pattern and the sensingelectrode pattern may exhibit a diamond shaped annulus formation similarto that of the previous exemplary embodiments described in associationwith FIG. 9, or may have a floated dummy pattern similarly configured asin the exemplary embodiments described in association with FIG. 10.

FIG. 12 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

Referring to FIG. 12, the sensing display panel 513 includes a displaysubstrate 100, a sensor substrate 200, a liquid crystal layer 300, afirst polarizing plate 410, and a second polarizing plate 430. Thesensor substrate 200 includes a base substrate 201 and a sensor layerSSL.

The sensor layer SSL may be disposed between the first polarizing plate410 and the base substrate 201 of the sensor substrate 200.

As shown and described in association with FIGS. 2 and 3, the sensorlayer SSL may be configured to include a plurality of driving electrodepatterns ST1, ST2, ST3, . . . , STN, a plurality of sensing electrodepatterns SR1, SR2, SR3, . . . , SRM, and the driving lines TL. Each ofthe driving electrode patterns ST1, ST2, ST3, . . . , STN includes aplurality of driving lines TL, which are connected to one another, suchas in a mesh shape. Each of the sensing electrode patterns SR1, SR2,SR3, . . . , SRM includes a plurality of sensing lines RL, which areconnected to one another, such as in a mesh shape.

FIG. 13 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

Referring to FIG. 13, the sensing display panel 514 includes a displaysubstrate 100, a sensor substrate 200, a liquid crystal layer 300, afirst polarizing plate 410, and a second polarizing plate 430. Thesensor substrate 200 includes a base substrate 201, a color filter layerCF, a first sensor layer SSL1, and a second sensor layer SSL2.

As shown and described in association with FIGS. 2 and 3, the firstsensor layer SSL1 may be configured to include a plurality of sensingelectrode patterns SR1, SR2, SR3, . . . , SRM, and each of the sensingelectrode patterns SR1, SR2, SR3, . . . , SRM includes a plurality ofsensing lines RL, which are connected to one another, such as in a meshshape. The second sensor layer SSL2 may include a plurality of drivingelectrode patterns ST1, ST2, ST3, . . . , STN, and each of the drivingelectrode patterns ST1, ST2, ST3, . . . , STN includes a plurality ofdriving lines TL, which are connected to one another, such as in a meshshape.

The first sensor layer SSL1, according to exemplary embodiments, isdisposed on the base substrate 201, as well as disposed between the basesubstrate 201 and the color filter layer CF. Further, the second sensorlayer SSL2 may be disposed on the color filter layer CF. The firstsensor layer SSL1 and the second sensor layer SSL2 may be insulated fromone another by the color filter layer CF.

FIG. 14 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

Referring to FIG. 14, the sensing display panel 515 includes a displaysubstrate 100, a sensor substrate 200, a liquid crystal layer 300, afirst polarizing plate 410, and a second polarizing plate 430. Thesensor substrate 200 includes a base substrate 201, a color filter layerCF, a first sensor layer SSL1, and a second sensor layer SSL2.

As previously described in association with FIGS. 2 and 3, the firstsensor layer SSL1 may include a plurality of sensing electrode patternsSR1, SR2, SR3, . . . , SRM, and each of the sensing electrode patternsSR1, SR2, SR3, . . . , SRM may include a plurality of sensing lines RLwhich are connected to one another, such as in a mesh shape. The secondsensor layer SSL2 may include a plurality of driving electrode patternsST1, ST2, ST3, . . . , STN, and each of the driving electrode patternsST1, ST2, ST3, . . . , STN may include a plurality of driving lines TL,which are connected to one another, such as in a mesh shape.

According to exemplary embodiments, the first sensor layer SSL1 may bedisposed on a first surface of the base substrate 201, and the secondsensor layer SSL2 may be disposed on a second surface of the basesubstrate 201 opposite to the first surface. For example, the firstsensor layer SSL1 may be disposed between the first polarizing plate 410and the first surface of the base substrate 201 and the second sensorlayer SSL2 may be disposed between the second surface of the basesubstrate 201 and the color filter layer CF. In this manner, the basesubstrate 201 may be disposed between the first sensor layer SSL1 andthe second sensor layer SSL2, and the first sensor layer SSL1 and thesecond sensor layer SSL2 may be insulated from one another via the basesubstrate 201.

To this end, it is noted that each of the sensing display panelsdescribed in association with FIGS. 9 to 14 may be driven substantiallysimilarly as described in association with FIG. 7 or FIG. 8. As such,corresponding descriptions are not repeated, unless furtherance ofexemplary embodiments would be facilitated by such duplicativedescription.

FIG. 15 is a block diagram of a display apparatus incorporating asensing display panel, according to exemplary embodiments. FIG. 16 is aplan view of the sensing display panel of FIG. 15.

Referring to FIGS. 15 and 16, the display apparatus includes a sensingdisplay panel 520, a sensing driving circuit 620, a sensing read outcircuit 720, and a control part 920. While specific reference will bemade to this particular implementation, it is also contemplated that thedisplay apparatus may embody many forms and include multiple and/oralternative components or features. For example, it is contemplated thatthe components of the display apparatus may be combined, located inseparate structures, and/or separate locations.

The sensing display panel 520 includes a plurality of driving electrodepatterns ST1, ST2, ST3, . . . , STN and a plurality of sensing electrodepatterns SR1, SR2, SR3, . . . , SRM. In this manner, sensing displaypanel 520 may, according to various exemplary embodiments, be configuredas a capacitive touch screen.

The driving electrode patterns ST1, ST2, ST3, . . . , STN are extendedin a first direction (e.g., D1), as well as disposed in a seconddirection (e.g., D2), which may be configured to cross the firstdirection D1. Each of the driving electrode patterns ST1, ST2, ST3, . .. , STN may include a rectangular shape exhibiting a longitudinaldirection corresponding to the first direction D1. Each of the drivingelectrode patterns ST1, ST2, ST3, . . . , STN may be one electrodepattern corresponding to a plurality of pixels. Each of the drivingelectrode patterns ST1, ST2, ST3, . . . , STN is electrically connectedto a common line STL via at least one contact hole CH.

The common line STL may be extended in the first direction D1, as wellas arranged in the second direction D2. Further, the common line STL maybe grouped into a common line group including at least one common lineSTL. For example, common lines included in the sensor display panel 520may be grouped into N common line groups. The first to N-th common linegroups GR1, GR2, . . . , GRN may be individually driven.

The sensing electrode patterns SR1, SR2, SR3, . . . , SRM are extendedin the second direction D2, as well as arranged in the first directionD1. Each of the sensing electrode patterns SR1, SR2, SR3, . . . , SRMincludes a plurality of sensing lines RL, which are connected to oneanother, such as in a mesh shape. The sensing lines RL may be configuredto overlap the black matrix pattern BM.

According to exemplary embodiments, the sensing driving circuit 620 maybe configured to provide the first to N-th common line groups GR1, GR2,. . . , GRN with a common voltage Vcom during an active period of aframe during which image data is provided to the sensing display panel520. Provision of the image data may be in accordance with one or morecontrol signals received from, for example, control part 920. As such,the common voltage Vcom may be applied to the first to N-th drivingelectrode patterns ST1, ST2, ST3, . . . , STN, which are electricallyconnected to the first to N-th common line groups GR1, GR2, . . . , GRN.

Further, the sensing driving circuit 620 may be configured tosequentially provide the driving signal to the first to N-th common linegroups GR1, GR2, . . . , GRN during a blanking period of a frame duringwhich the image data is blocked from being applied to the sensingdisplay panel 520, such as in accordance with one or more controlsignals received from, for example, the control part 920. To this end,the driving signal may be sequentially provided to the first to N-thdriving electrode patterns ST1, ST2, ST3, . . . , STN, which may beelectrically connected to the first to N-th common line groups GR1, GR2,. . . , GRN.

The sensing read out circuit 720 may be configured to receive thesensing signals Rx1, Rx2, Rx3, . . . , RxM via the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM during the blanking period when thedriving signal is sequentially applied to the driving electrode patternsST1, ST2, ST3, . . . , STN based on, for instance, one or more controlsignals received in association with control part 920.

According to various exemplary embodiments, sensing driving circuit 620,the sensing read out circuit 720, and/or the control part 920 may beimplemented via software, hardware, firmware, or a combination thereof.For instance, sensing driving circuit 620, the sensing read out circuit720, and/or the control part 920 may be implemented via one or moregeneral purpose and/or special purpose components, such as one or morediscrete circuits, digital signal processing chips, integrated circuits,application specific integrated circuits, microprocessors, processors,programmable arrays, field programmable arrays, instruction setprocessors, and/or the like.

According to exemplary embodiments, the sensing read out circuit 720 mayalso be configured to provide the sensing display panel 520 with a biassignal, such as a signal exhibiting a DC voltage in accordance with apredetermined voltage level, while the sensing display panel 520 isbeing driven. In this manner, the static electricity blocking effect maybe improved.

FIG. 17 is a cross-sectional view of the sensing display panel of FIG.16 taken along sectional line III-III′, according to exemplaryembodiments. As previously noted, same reference numerals are used torefer to the same or like components as those previously described. Assuch, corresponding descriptions are not repeated, unless furtherance ofexemplary embodiments would be facilitated by such duplicativedescription.

As seen in FIGS. 16 and 17, the sensing display panel 520 includes adisplay substrate 100, a sensor substrate 200 opposite to the displaysubstrate 100, and a liquid crystal layer 300 disposed between thedisplay substrates 100 and the sensor substrate 200. The sensing displaypanel 520 may further include a first polarizing plate 410 disposed onthe sensor substrate 200 and a second polarizing plate 430 disposedunder the display substrate 100.

According to exemplary embodiments, the display substrate 100 includes afirst base substrate 101, a gate line GL (not shown), a common line STL,a gate insulating layer 110, a data line DL, a switching element TR, apixel electrode PE, a protecting layer 130, and a plurality of drivingelectrode patterns ST1, ST2, ST3, . . . , STN.

The gate line GL is extended in the first direction D1 and may beconfigured to overlap the black matrix pattern BM. The gate line GL maybe electrically connected to a gate electrode GE of the switchingelement TR.

The common line STL may be parallel to the gate line GL. The common lineSTL is electrically connected to a corresponded driving electrodepattern via the contact hole CH. For example, the common line STL may beelectrically connected to the first driving electrode pattern STD1, suchas shown in FIGS. 16 and 17.

The gate insulating layer 110 may be disposed on the first basesubstrate 101 and, thereby, utilized to cover the gate line GL, the gateelectrode GE, and the common line STL.

The data line DL may be configured to overlap the black matrix patternBM, which is extended in the second direction D2. The data line DL maybe electrically connected to a source electrode SE of the switchingelement TR.

The switching element TR includes an active layer AC, which may bedisposed between the gate electrode GE and the source electrode SE andthe drain electrode DE.

The pixel electrode PE may be disposed on a pixel area, which is definedby the black matrix pattern BM, and is electrically connected to thedrain electrode DE of the switching element TR so as to receive a datavoltage.

The protecting layer 130 may be disposed on the first base substrate 101and, thereby, utilized to cover the data line DL, the source electrodeSE, and the pixel electrode PE.

According to exemplary embodiments, the driving electrode pattern ST1 isdisposed corresponding to pixel electrodes PE included in at least onepixel row. The driving electrode pattern ST1 is disposed in an area inwhich a plurality of pixel rows corresponding to a first common linegroup GR1 is disposed. As such, the sensor display panel 520 may beconfigured to include the first to N-th driving electrode patterns ST1,ST2, ST3, . . . , STN, which are extended in the first direction D1, aswell as arranged in the second direction D2. Further, each of the firstto N-th driving electrode patterns ST1, ST2, ST3, . . . , STN mayinclude a slit pattern and, thereby, define a pixel area unit. To thisend, the driving electrode patterns ST1, ST2, ST3, . . . , STN may beutilized for both sensing touches and/or “near” touches, and displayingimages.

The sensor substrate 200 includes a second base substrate 201, a blackmatrix pattern BM, a plurality of sensing electrode patterns SR1, SR2,SR3, . . . , SRM, color filter layer CF, and an overcoating layer OC.

The black matrix pattern BM divides the second base substrate 201 into atransmission area and a blocking area and exhibits a matrix shape.

The color filter layer CF includes a plurality of color filters, such asa red color filter, a green color filter, a blue color filter, etc. Eachcolor filter may be disposed in the transmission area, which is definedin association with the black matrix pattern BM. It is noted that thetransmission area may corresponding to a light transmission area inwhich images may be displayed. To this end, the transmission area mayrelate to an image display area.

The sensing electrode patterns SR1, SR2, SR3, . . . , SRM are disposedon the color filter layer CF. The sensing electrode patterns SR1, SR2,SR3, . . . , SRM are extended in the second direction D2, as well asarranged in the first direction D1. Each of the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM includes a plurality of sensinglines RL, which are connected to one another, such as in a mesh shape.The sensing lines RL may be configured to overlap with the black matrixpattern BM.

The overcoating layer OC is disposed on the sensing electrode patternsSR1, SR2, SR3, . . . , SRM. To this end, the overcoating layer OC may beplanarized so that a surface of the sensor substrate 200 may be flat orsubstantially flat.

According to exemplary embodiments, the driving electrode pattern isused as the common electrode CE of the sensing display panel 510 sothat, for instance, a structure and various processes of the sensorsubstrate 200 may be simplified.

According to exemplary embodiments, the sensor substrate 200 includesthe sensing electrode patterns SR1, SR2, SR3, . . . , SRM, which areformed with metal material so that the sensing touch panel 520 may beprotected from the deleterious effects associated with staticelectricity. In this manner, the sensing display panel 520 may beconfigured without conventional static electricity blocking layer(s)typically utilized to blocking static electricity effects.

FIG. 18 is a waveform diagram associated with driving the sensingdisplay panel of FIG. 15, according to exemplary embodiments.

With continued reference to FIGS. 15 and 17, the sensor display panel520 is configured to display an image during an active period of a frameperiod and to sense a touch during a blanking period of a frame periodbased on a vertical synchronization signal V_SYNC, as seen in FIG. 18.For example, the sensor display panel 520 may be configured to sense atouch on a surface of the sensor display panel 520 during a blankingperiod based on a touch enable signal T_EN.

The sensing driving circuit 620 may be configured to provide the firstto N-th driving electrode patterns ST1, ST2, ST3, . . . , STN with firstto N-th driving signals Tx1, Tx2, Tx3, . . . , TxN via the first to N-thcommon line groups GR1, GR2, . . . , GRN, respectively.

During an active period, e.g., when the sensing display panel 520 isconfigured to display an image, the sensing driving circuit 620 isconfigured to provide the first to N-th driving electrode patterns ST1,ST2, ST3, . . . , STN with the common voltage Vcom so that the first toN-th driving electrode patterns ST1, ST2, ST3, . . . , STN may be drivenas the common electrode of the pixel electrode PE. Each of the first toN-th driving signals Tx1, Tx2, Tx3, . . . , TxN, which are applied toeach of the first to N-th driving electrode patterns ST1, ST2, ST3, . .. , STN during the active period, is the common voltage Vcom.

During the blanking period, e.g., when the sensing display panel 520 isconfigured to sense a touch on a surface thereof, the sensing drivingcircuit 620 is configured to sequentially provide the first to N-thdriving electrode patterns ST1, ST2, ST3, . . . , STN with a drivingsignal exhibiting a predetermined voltage level. The driving signalexhibits a level Vd which is equal to or different than the commonvoltage Vcom. The driving signal may exhibit a width corresponding tothe sensing horizontal period S_H, and may include at least one pulse.

For example, while a first driving signal Tx1 is being applied to thefirst driving electrode pattern ST1, the common voltage Vcom (as a biassignal) may be applied to the remainder of the second to N-th drivingelectrode patterns ST2, ST3, . . . , STN, i.e., all of the drivingelectrode patterns except for the first driving electrode pattern ST1.As described above, while a second driving signal Tx2 is being appliedto the second driving electrode pattern ST2, the common voltage Vcom (asthe bias signal) may be applied to the remainder of the first drivingelectrode pattern ST1 and the third to N-th driving electrode patternsST3, . . . , STN, i.e., all of the driving electrode patterns except forthe second driving electrode pattern ST2.

During the active period, the sensing read out circuit 720 is configuredto provide the sensing electrode patterns SR1, SR2, SR3, . . . , SRMwith the DC voltage exhibiting the predetermined voltage level as thebias signal.

During the blanking period, the sensing read out circuit 720 isconfigured to provide the sensing electrode patterns SR1, SR2, SR3, . .. , SRM with the bias signal and further configured to receive sensingsignals Rx1, Rx2, Rx3, . . . , RxM from the sensing electrode patternsSR1, SR2, SR3, . . . , SRM.

According to exemplary embodiments, while the sensor display panel 520is being driven, the sensing read out circuit 720 may be configured toprovide the first to M-th sensing electrode patterns SR1, SR2, SR3, . .. , SRM with the DC voltage exhibiting the predetermined voltage level(as the bias signal) so that a static electricity blocking effect may beimproved via the sensor patterns SR1, SR2, SR3, . . . , SRM.

FIG. 19 is a block diagram of a display apparatus incorporating asensing display panel, according to exemplary embodiments. FIG. 20 is aplan view of the sensing display panel of FIG. 19.

As seen in FIGS. 19 and 20, the display apparatus includes a sensingdisplay panel 530, a sensing driving circuit 630, a voltage generatingcircuit 830, a sensing read out circuit 730, and a control part 930.While specific reference will be made to this particular implementation,it is also contemplated that the display apparatus may embody many formsand include multiple and/or alternative components or features. Forexample, it is contemplated that the components of the display apparatusmay be combined, located in separate structures, and/or separatelocations.

According to exemplary embodiments, the sensing display panel 520includes a plurality of driving electrode patterns ST1, ST2, ST3, . . ., STN and a plurality of sensing electrode patterns SR1, SR2, SR3, . . ., SRM. In this manner, the sensing display panel 520 may be configuredin accordance with (or otherwise implement) a capacitive touch screen.Further, the sensing display panel 530 may include a plurality of commonelectrode patterns CP1, CP2, . . . , CPM.

The driving electrode patterns ST1, ST2, ST3, . . . , STN may beextended in a first direction, e.g., D1, as well as be arranged in asecond direction, e.g., D2, which may be configured to cross the firstdirection D1. Each of the driving electrode patterns ST1, ST2, ST3, . .. , STN may include a plurality of unit patterns UP. The unit patternsUP may be spaced apart from one another. The unit patterns UP includedin one driving electrode pattern are electrically connected to oneanother via a common line STL. Each of the unit patterns UP may beformed as one electrode pattern corresponding to the pixel electrodesarranged in a matrix shape. The driving electrode patterns ST1, ST2,ST3, . . . , STN are electrically connected to the common line STL viaat least one contact hole CH.

The sensing electrode patterns SR1, SR2, SR3, . . . , SRM are extendedin the second direction D2, as well as arranged in the first directionD1. The driving electrode patterns ST1, ST2, ST3, . . . , STN arealternately arranged with the unit patterns UP. Each of the sensingelectrode patterns SR1, SR2, SR3, . . . , SRM includes a plurality ofsensing lines RL, which are connected to one another, such as in a meshshape. The sensing lines RL may be configured to overlap the blackmatrix pattern BM.

The common electrode patterns CP1, CP2, . . . , CPM are configured tooverlap with the sensing electrode patterns SR1, SR2, SR3, . . . , SRM,and are alternately arranged with the unit patterns UP. Each of thecommon electrode patterns CP1, CP2, . . . , CPM may be formed as oneelectrode pattern. Each of the common electrode patterns CP1, CP2, . . ., CPM may be disposed in an area in which the pixel electrodes arrangedin at least one column and overlap with the corresponded sensingelectrode pattern. The common electrode patterns CP1, CP2, . . . , CPMare electrically connected to the common line STL via at least onecontact hole CH.

A plurality of common lines STL are extended in the first direction D1and arranged in the second direction D2. The common lines STL may begrouped into a plurality of driving groups and each of the drivinggroups may include at least one common line STL. For example, the commonlines STL included in the sensor display panel 530 may be divided intofirst to N-th common groups GC1, GC2, . . . , GCN and first to N-thdriving groups GT1, GT2, . . . , GTN, and each group may be individuallydriven. As depicted in FIG. 20, the first to N-th driving groups GT1,GT2, . . . , GTN may be alternately arranged with the first to N-thcommon groups GC1, GC2, . . . , GCN.

The first to N-th common groups GC1, GC2, . . . , GCN are electricallyconnected to the common electrode patterns CP1, CP2, . . . , CPM via atleast one contact hole CH, respectively.

According to exemplary embodiments, the first to N-th driving groupsGT1, GT2, . . . , GTN are electrically connected to the drivingelectrode patterns ST1, ST2, ST3, . . . , STN via at least one contacthole CH, respectively. As seen in FIG. 20, a first driving group GT1 iselectrically connected to the unit patterns UP associated with the firstdriving electrode pattern ST1 via at least one contact hole CH. A seconddriving group GT2 is electrically connected to the unit patterns UPassociated with the second driving electrode pattern ST2 via at leastone contact hole CH. As described above, each driving group iselectrically connected to the corresponded driving electrode pattern.

The sensing driving circuit 630 is configured to provide the first toN-th driving groups GT1, GT2, . . . , GTN with a common voltage Vcomduring an active period of a frame during which image data may beprovided to the sensing display panel 530 based on, for example, one ormore control signals received from the control part 930. Further, thesensing driving circuit 630 may be configured to sequentially providethe driving signal with the first to N-th driving groups GT1, GT2, . . ., GTN during a blanking period of a frame during which the image data isblocked from being applied to the sensing display panel 530 based on,for instance, one or more control signals received from the control part930. Accordingly, the driving signal may be sequentially applied to thefirst to N-th driving electrode patterns ST1, ST2, ST3, . . . , STN.

According to exemplary embodiments, the voltage generating circuit 830may be configured to provide the first to N-th common groups GC1, GC2, .. . , GCN with common voltage Vcom during the active period based on,for instance, one or more control signals received from the control part930. The voltage generating circuit 830 may also be configured to blockthe common voltage Vcom from being applied to the first to N-th commongroups GC1, GC2, . . . , GCN during the blanking period based on one ormore control signal received from, for instance, the control part 930.Alternatively (or additionally), the voltage generating circuit 830 maybe configured to provide the first to N-th common groups GC1, GC2, . . ., GCN with a ground voltage GND during the blanking period according toone or more control signals received from, for example, the control part930. To this end, during the blanking period, the common electrodepatterns CP1, CP2, . . . , CPM may be electrically floated, or receivethe ground voltage GND.

The sensing read out circuit 730 may be configured to receive thesensing signals Rx1, Rx2, Rx3, . . . , RxM from the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM during the blanking period when thedriving signal is being applied to the driving electrode patterns ST1,ST2, ST3, . . . , STN, such as, in accordance with one or more controlsignal received from the control part 930. In this manner, the sensingread out circuit 730 may be configured to provide the sensing electrodepatterns SR1, SR2, SR3, . . . , SRM with the bias signal, such as the DCvoltage exhibiting a predetermined voltage level, as well as configuredto receive the sensing signals Rx1, Rx2, Rx3, . . . , RxM from thesensing electrode patterns SR1, SR2, SR3, . . . , SRM while the sensingdisplay panel 530 is being driven. Accordingly, the bias signal may beapplied to the sensing electrode patterns SR1, SR2, SR3, . . . , SRMwhile the sensing display panel 530 is being driven so that a staticelectricity blocking effect may be improved.

The cross-sectional view of the sensing display panel 530 taken alongsectional line III-III′ in FIG. 20 is substantially the same as thecross-sectional view of the sensing display panel 520 and, therefore,duplicative description need not be provided.

According to exemplary embodiments, it is noted that the commonelectrode CE included in the sensing display panel 510 may be used asthe driving electrode pattern for sensing a touch (or near touch) sothat a structure and processes of the sensing display panel 530 may besimplified.

According to exemplary embodiments, static electricity may be blocked bythe sensing electrode patterns SR1, SR2, SR3, . . . , SRM, which areincluded in the sensor substrate 200, and are formed with metal.Further, a bias signal may be applied to the sensing electrode patternsSR1, SR2, SR3, . . . , SRM so that a static electricity blocking effectmay be improved.

FIG. 21 is a waveform diagram associated with driving the sensingdisplay panel of FIG. 19, according to exemplary embodiments.

With reference to FIGS. 19, 20, and 21, the sensor display panel 530 maybe configured to display an image during an active period of a frameperiod and sense a touch (or near touch) during a blanking period of aframe period based on a vertical synchronization signal V_SYNC. Forexample, the sensor display panel 530 may sense touches during theblanking period based on a touch enable signal T_EN.

To this end, the sensing driving circuit 630 may be configured toprovide the first to N-th driving electrode patterns ST1, ST2, ST3, . .. , STN with the first to N-th driving signals Tx1, Tx2, Tx3, . . . ,TxN via the first to N-th driving groups GT1, GT2, . . . , GTN,respectively.

During the active period when the sensing display panel 530 isconfigured to display image(s), the sensing driving circuit 630 may beconfigured to provide the first to N-th driving electrode patterns ST1,ST2, ST3, . . . , STN with the common voltage Vcom so that the first toN-th driving electrode patterns ST1, ST2, ST3, . . . , STN may be drivenas the common electrode of the pixel electrode PE. Each of the first toN-th driving signals Tx1, Tx2, Tx3, . . . , TxN, which are applied toeach of the first to N-th driving electrode patterns ST1, ST2, ST3, . .. , STN during the active period, is the common voltage Vcom.

During the blanking period when which the sensing display panel 530 isconfigured to sense touches, the sensing driving circuit 630 may beconfigured to sequentially provide the first to N-th driving electrodepatterns ST1, ST2, ST3, . . . , STN with a driving signal exhibiting apredetermined voltage level. The driving signal exhibits a level voltageVd, which is equal to or different than the common voltage Vcom. Thedriving signal may exhibit a width corresponding to the sensinghorizontal period S_H and may include at least one pulse.

For example, while a first driving signal Tx1 is being applied to thefirst driving electrode pattern ST1, the common voltage Vcom (as a biassignal) may be applied to the remainder of the second to N-th drivingelectrode patterns ST2, ST3, . . . , STN, i.e., all of the drivingelectrode patterns except for the first driving electrode pattern ST1.As described above, when a second driving signal Tx2 is applied to thesecond driving electrode pattern ST2, the common voltage Vcom (as thebias signal) may be applied to the remainder of the first drivingelectrode pattern ST1 and the third to N-th driving electrode patternsST3, . . . , STN, i.e., all of the driving electrode patterns except forthe second driving electrode pattern ST2.

According to exemplary embodiments, the voltage generating circuit 830may be configured to provide the first to M-th common electrode patternsCP1, CP2, . . . , CPM with first to N-th voltage signals Cs1, Cs2, Cs3,. . . , CsN via the first to N-th common groups GC1, GC2, . . . , GCN,respectively.

For example, during the active period, the voltage generating circuit830 may be configured to provide the first to M-th common electrodepatterns CP1, CP2, . . . , CPM with first to N-th voltage signals Cs1,Cs2, Cs3, . . . , CsN, which are the same as the common voltage Vcom.

Further, during the blanking period, the voltage generating circuit 830may be configured to provide the first to M-th common electrode patternsCP1, CP2, . . . , CPM with first to N-th voltage signals Cs1, Cs2, Cs3,. . . , CsN, which are the same as the common voltage Vcom.

During the active period, the sensing read out circuit 730 may beconfigured to provide the sensing electrode patterns SR1, SR2, SR3, . .. , SRM with the bias signal, such as the DC voltage exhibiting thepredetermined voltage level or the ground voltage.

Moreover, during the blanking period, the sensing read out circuit 730may be configured to receive the sensing signals Rx1, Rx2, Rx3, . . . ,RxM from the sensing electrode patterns SR1, SR2, SR3, . . . , SRM.

Accordingly, the driving electrode pattern and the sensing electrodepattern may be spaced apart from each other so that the fringe area ofthe driving electrode pattern and the sensing electrode pattern may beincreased. To this end, a touch sensing efficiency may be increased.Further, it is noted that the shape of the unit pattern UP maycorrespond to any suitable shape, such as, for example, a lozenge shape,a square shape, a rectangular shape, etc.

According to exemplary embodiments, the sensing read out circuit 730 maybe configured to provide the first to M-th sensing electrode patternsSR1, SR2, SR3, . . . , SRM with the bias signal, such as the DC voltageexhibiting the predetermined voltage level or the ground voltage, duringa frame in which the sensor display panel 530 is being driven so that astatic electricity blocking effect may be improved by the sensorpatterns SR1, SR2, SR3, . . . , SRM.

FIG. 22 is a plan view of a sensing display panel, according toexemplary embodiments. As previously noted, same reference numerals areused to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative and/or simplified descriptions thereof.

Adverting to FIGS. 19 and 22, the sensing display panel 540 furtherincludes a plurality of voltage lines VL. In comparison to the sensingdisplay panel 530, the voltage lines VL may be electrically connected tothe driving electrode patterns ST1, ST2, ST3, . . . , STN via thecontact hole and may be parallel (or substantially parallel) to thecommon line STL.

The sensing display panel 540 includes a plurality of driving electrodepatterns ST1, ST2, ST3, . . . , STN, a plurality of sensing electrodepatterns SR1, SR2, SR3, . . . , SRM, and a plurality of common electrodepatterns CP1, CP2, . . . , CPM. In this manner, sensing display panel540 may be configured in association with or to implement a capacitivetouch screen.

The driving electrode patterns ST1, ST2, ST3, . . . , STN include aplurality of unit patterns UP, which are spaced apart from one another,and the unit patterns UP included in one driving electrode pattern areelectrically connected to the voltage line VL via at least one contacthole CH.

The sensing electrode patterns SR1, SR2, SR3, . . . , SRM are extendedin a second direction (e.g., D2), as well as arranged in a firstdirection (e.g., D1). In this manner, the sensing electrode patternsSR1, SR2, SR3, . . . , SRM may be alternately arranged with the unitpatterns UP of the driving electrode patterns ST1, ST2, ST3, . . . ,STN. Each of the sensing electrode patterns SR1, SR2, SR3, . . . , SRMincludes a plurality of sensing lines RL, which are connected to oneanother, such as in a mesh shape.

The common electrode patterns CP1, CP2, . . . , CPM may be configured tooverlap the sensing electrode patterns SR1, SR2, SR3, . . . , SRM, andmay be alternately arranged with the unit patterns UP. Each of thecommon electrode patterns CP1, CP2, . . . , CPM may be formed as oneelectrode pattern. Each of the common electrode patterns CP1, CP2, . . ., CPM may be disposed in an area in which the pixel electrodes arearranged in at least one column and overlap with the correspondedsensing electrode pattern. The common electrode patterns CP1, CP2, . . ., CPM may be electrically connected to the common line STL via at leastone contact hole CH.

The common lines STL of the sensor display panel 540 may be divided intofirst to N-th common groups GC1, GC2, . . . , GCN and the voltage linesVL of the sensor display panel 540 may be divided into first to N-thdriving groups GT1, GT2, . . . , GTN. Each group may be individuallydriven.

The first to N-th common groups GC1, GC2, . . . , GCN may beelectrically connected to the common electrode patterns CP1, CP2, . . ., CPM via at least one contact hole CH. The first to N-th driving groupsGT1, GT2, . . . , GTN may be electrically connected to the drivingelectrode patterns ST1, ST2, ST3, . . . , STN via at least one contacthole CH.

Alternatively, when the display substrate includes the common lines STLand does not include the voltage lines VL, the common lines STL may bedivided into the common groups GC1, GC2, . . . , GCN and the drivinggroups GT1, GT2, . . . , GTN.

According to exemplary embodiments, the sensing driving circuit 630 maybe configured to provide the first to N-th driving groups GT1, GT2, . .. , GTN with the common voltage Vcom during the active period of aframe. The sensing driving circuit 630 may also be configured tosequentially provide the first to N-th driving groups GT1, GT2, . . . ,GTN with the driving signal during the blanking period of the frame. Assuch, the driving signal may be sequentially applied to the first toN-th driving electrode patterns ST1, ST2, ST3, . . . , STN.

According to exemplary embodiments, the voltage generating circuit 830may be configured to provide the first to M-th common electrode patternsCP1, CP2, . . . , CPM with the common voltage Vcom via the first to N-thcommon groups GC1, GC2, . . . , GCN during the active period. Thevoltage generating circuit 830 may also be configured to provide thefirst to M-th common electrode patterns CP1, CP2, . . . , CPM with thecommon voltage Vcom via the first to N-th common groups GC1, GC2, . . ., GCN during the blanking period.

As described above, the sensing display panel 540 may be drivensubstantially the same as the sensor display panel 530.

FIG. 23 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

With reference to FIGS. 17 and 23, the sensing display panel 521includes the sensing electrode pattern SR, which is disposed between thebase substrate 201 of the sensor substrate 200 and the color filterlayer CF in comparison to the sensing display panel 520 described inassociation with FIG. 17.

The remainder of the components except for the sensing electrode patternSR may be substantially the same as those previously described inassociation with FIG. 17 and, therefore, duplicative descriptions arenot provided.

FIG. 24 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

With reference to FIGS. 17 and 24, the sensing display panel 522includes the sensing electrode pattern SR, which is disposed between thebase substrate 201 of the sensor substrate 200 and the color filterlayer CF in comparison to the sensing display panel 520 described inassociation with FIG. 17.

According to exemplary embodiments, positions of the driving electrodepattern ST and pixel electrode PE are switched with one another incomparison to those positions described in association with the sensingdisplay panel 520 of FIG. 17. In other words, according to exemplaryembodiments, the driving electrode pattern ST may be disposed betweenthe insulating layer 110 and the protecting layer 130, and the pixelelectrode PE may be disposed on the protecting layer 130, with referenceto FIG. 7.

The remainder of the components, except for the driving electrodepattern ST and the pixel electrode PE may be substantially the same asthose described in association with FIG. 17 and, therefore, duplicativedescriptions are not provided.

FIG. 25 is a cross-sectional view of a sensing display panel, accordingto exemplary embodiments. As previously noted, same reference numeralsare used to refer to the same or like components as those previouslydescribed. As such, corresponding descriptions are not repeated, unlessfurtherance of exemplary embodiments would be facilitated by suchduplicative description.

With reference to FIGS. 17 and 25, the sensing display panel 523includes the sensor layer SR disposed between the color filter layer CFand the liquid crystal layer 300, the driving electrode pattern disposedbetween the insulating layer 110 and the protecting layer 130, and thepixel electrode PE disposed on the protecting layer 130.

The remainder of the components, except for the sensor layer SR, thedriving electrode pattern ST, and the pixel electrode PE may besubstantially the same as those previously described in association withFIG. 17 and, therefore, duplicative descriptions are not be provided.

According to exemplary embodiments, the sensor substrate 200 includes atleast one of the driving electrode patterns ST1, ST2, ST3, . . . , STNand the sensing electrode patterns SR1, SR2, SR3, . . . , SRM, which areformed with metal material so that the display apparatus may beprotected from the deleterious effects associated static electricity.Accordingly, the display apparatus may be configured withoutconventional static electricity blocking layers typically utilized toblock static electricity.

Further, the bias signal, such as the DC voltage exhibiting apredetermined voltage level or the ground voltage GND, may be applied toat least one of the driving electrode patterns ST1, ST2, ST3, . . . ,STN and the sensing electrode patterns SR1, SR2, SR3, . . . , SRM, sothat a static electricity blocking effect may be improved.

While certain exemplary embodiments and implementations have beendescribed herein, other embodiments and modifications will be apparentfrom this description. Accordingly, the invention is not limited to suchembodiments, but rather to the broader scope of the presented claims andvarious obvious modifications and equivalent arrangements.

What is claimed is:
 1. A sensing display panel, comprising: a displaysubstrate comprising: a base substrate; a plurality of pixel electrodesarranged in a matrix formation on the base substrate, a drivingelectrode pattern overlapping the plurality of pixel electrodes, and acommon line connected to the driving electrode pattern; and a sensorsubstrate comprising: a black matrix pattern comprising an area in whichthe plurality of pixel electrodes are disposed, the area correspondingto a light transmission area, a sensing electrode pattern comprising aplurality of sensing lines, which are connected to one another andsurround the light transmission area in a plan view, the plurality ofsensing lines being spaced apart from the black matrix pattern in afirst direction perpendicular to a surface of the base substrate suchthat the plurality of sensing lines are disposed between the blackmatrix pattern and the base substrate, and a color filter comprising aportion disposed between the black matrix pattern and the sensing lines,wherein the light transmission area overlaps the common line.
 2. Thesensing display panel of claim 1, wherein: the display substratecomprises: first to N-th driving electrode patterns, N being an integergreater than one; and first to N-th common line groups respectivelyconnected to the first to N-th driving electrode patterns; and each ofthe first to N-th common line groups comprises at least one common line.3. The sensing display panel of claim 2, wherein each of the first toN-th driving electrode patterns is connected to the at least one commonline of a corresponding common line group via at least one contact hole.4. The sensing display panel of claim 2, wherein: a common voltage iscaused to be applied to the first to N-th driving electrode patterns viathe first to N-th common line groups during an active period of a frame;and a driving signal is caused to be sequentially applied to first toN-th driving electrode patterns via the first to N-th common line groupsduring a blanking period of a frame.
 5. The sensing display panel ofclaim 4, wherein: the sensor substrate comprises first to M-th sensingelectrode patterns, M being an integer greater than one; and a directcurrent voltage exhibiting a predetermined voltage level is applied tothe first to M-th sensing electrode patterns.
 6. The sensing displaypanel of claim 1, wherein: the driving electrode pattern is one of aplurality of driving electrode patterns extending in a second direction;and the sensing electrode pattern is one of a plurality of sensingelectrode patterns extending in a third direction crossing the seconddirection, each of the sensing electrode patterns comprising a pluralityof lines connected to each other, wherein each of the driving electrodepatterns has a different shape from each of the sensing electrodepatterns.
 7. The sensing display panel of claim 6, wherein the pluralityof sensing electrode patterns overlap the plurality of driving electrodepatterns in the first direction.
 8. The sensing display panel of claim6, wherein: each of the plurality of driving electrode patternscomprises a plurality of unit patterns; and the plurality of unitpatterns and the plurality of sensing electrode patterns are alternatelyarranged with one another.
 9. The sensing display panel of claim 6,wherein: each of the plurality of driving electrode patterns overlaps atleast three first pixel electrodes among the plurality of pixelelectrodes, the at least three first pixel electrodes being spaced apartfrom one another in at least two directions perpendicular to one anotherand perpendicular to the first direction; and each of the sensingelectrode patterns surrounds at least three second pixel electrodesamong the plurality of pixel electrodes, the at least three second pixelelectrodes being spaced apart from one another in the at least twodirections.
 10. A sensing display panel, comprising: a display substratecomprising: a base substrate; a thin film transistor comprising a gateinsulating layer on the base substrate; a plurality of pixel electrodesarranged in a matrix formation, a pixel electrode among the plurality ofpixel electrodes being connected to the thin film transistor; a drivingelectrode pattern overlapping the plurality of pixel electrodes in adirection perpendicular to the base substrate; and a common lineconnected to the driving electrode pattern via a contact hole in thegate insulating layer; a sensor substrate comprising: a black matrixpattern comprising a plurality of opening areas, each opening area inwhich each pixel electrode is disposed, each opening area correspondingto a light transmission area; and a sensing electrode pattern comprisinga plurality of sensing lines, which are connected to one another to forma mesh shape having a plurality of holes, each hole respectivelysurrounding each opening area corresponding to the light transmissionarea in a plan view, the sensing electrode pattern being disposedbetween the black matrix pattern and the base substrate in the directionperpendicular to the base substrate; and a color filter comprising aportion disposed between the black matrix pattern and the sensing lines.11. The sensing display panel of claim 10, wherein the lighttransmission area overlaps the contact hole in the directionperpendicular to the base substrate.